For the task of mixing and automatic remixing [1]}, the dry (i.e. unprocessed) source tracks are required. Given the recent advances in automatic mixing [2]}, [3]} and music source separation [4]}, a system could be developed that facilitates the adjustment of a stereo mixture to the user's taste and preferences similar to [5]}.
However, today's source separation systems are commonly trained on data that is based on music stems (e.g., MUSDB18 [6]}).
Usually, a stem is mixed by a sound engineer from a group of processed audio tracks that belong together (e.g., all drum microphone tracks) using audio effects [7]}. Thus, separating sources with a system trained on stems does not consider the mixing process, and, hence, the output of such a system contains the wet (i.e. processed) signal. Additionally, in the process of re-mixing of records from past decades, the unprocessed tracks are not accessible. Hence, an audio effect removal system could facilitate the restoration and re-mixing of old records.
